1 files changed, 31 insertions, 0 deletions
diff --git a/pyecsca/ec/error.py b/pyecsca/ec/error.py
new file mode 100644
index 0000000..f350d9e
--- /dev/null
+++ b/pyecsca/ec/error.py
@@ -0,0 +1,31 @@
+from public import public
+
+
+@public
+class NonInvertibleError(ArithmeticError):
+    pass
+
+
+@public
+class NonInvertibleWarning(UserWarning):
+    pass
+
+
+@public
+class NonResidueError(ArithmeticError):
+    pass
+
+
+@public
+class NonResidueWarning(UserWarning):
+    pass
+
+
+@public
+class UnsatisfiedAssumptionError(ValueError):
+    pass
+
+
+@public
+class UnsatisfiedAssumptionWarning(UserWarning):
+    pass